Burglarproof lock



' 622608 March 29.1921. F o. PETERSON l. i.

Filed Auz. 18, '1924 2 Sheets-Sheet 1 ral?? enal' el' sa March 29. 1.921. 1,622,6os

F. O. PETERSON BURGLARPROOF LOCK Filed Aug. 18, 1924 2 Sheets-Shasta Patented Mar. 29, 1927.l

STATES 1,622,60 PATENT.

nimnxoinfrnnsoii, on'ronfr iioDG, ioWA, ,Assiei'ion, BY' ivi'nsn'n nssieiiii'iiii's, 'ro PEOPLES INVESTMENT COMPANY, A coaroimrion or sourit i'iAKoTA.

BRGLARSRO LOCK.

Appucauenined August 11s, 19'24. seriali` NTO; 732,593.

An object oi this invention is to provide locking function oi' the auxiliary loc-king' means through th'e use' oi heat, explosive o'r impact torce suclr as might be applied by a burglar improperly attempting to' unlock the doors.

' A further object of this invention to provide improved means for preventing lock-v ing of vault doorin closed position by an authorized and iin-instructed person.

A further 'object of this invention is to pro*-` vide' improved means i'or enabling an occu pant of a' vault to' prevent reopening of a door which iras been closed and attempted to"Y be locked by an'- unauthorized and uniii'` strueted persona- A further object ott this invention' is to provide a dead-lock whereby the auxiliary locl'iing means oit a vault door may itself be locked, which dead-lock `is suspendible or operable to unlocking position by means applied to the inner face of the door only.

A further obj-ect of this invention is to provide means for removing, discharging and suspending the locking operation of the auxiliary locking means of a vault door which shall beI operable and susceptible of use from the outer face' of the door:

My invention consists iii' the construction, arrangement and combination of elements hereinafter set iforth, pointed out in the claims an'd illustrated by thel accompanying drawing, in which-e Figure l is an inner taceelevation eta vault door of common construction showing my improved devices mounted `thereon as required for' practical use. Figure 2 is an inner tace elevation of the auxiliary locking means, partly in section, and other devices carried thereby and usable for preventing unauthorized locking of the door and for authorized locking of the door at the inner tace thereof. Figure 3 is a top view, partly in section,` oi the devices shown i'n Figure l and Figure 4 is a bottom View of the same devices'. Figure 5 is ai cross-section onl the indicated line 5-1-5 of Figure 2. Figure' 6 is a vertical section on the indicated line of Figure 1. The elements are shown in Figures 2 Jco6 inclusive on a larger scale thanvth'e showing in Figure l.

Figures 7 and 8 are details showing a modified form.

`This invention relates to protective means ior safe and vault doors. Itis common practice for burglars to gain admission to the locking mechanism and `ei'ect an opening of vault door by several methods, .some` of- Wh-ic'h are burning a hole in the door and cutting the clogging bar through said helel by means ot a torch, or drilling through the door into the lock case and manipulating or destroying the' lock tumblers by force, or

blowing the lock case and operating means therein oit ot the door by an explosive charge applied thereto, or driving the lock` case inwardly from the door by impact on the exterior ot the door. All of these and other methods render impotent and susceptible of unauthorized manipulation, thev locking bars' oi the door and permit access to the interior oi' a vault by opening of the door. Part of my improvements relate tothe provision of an `auxiliary locking mechanism normally held out oi operation by retaining means, which retaining means are released or suspended by and through the medium ot any method of orcino the door above set forth or any other method' using heat, impact or explosive to destroy or permit unauthorized access to thel lock case or clogging bar.v The auxiliary locking mechanism when released and put into operation effectively prevents manipulation of the locking bars of the door and may be so located as to be substantially inaccessible' to and not susceptible of manipulation b an unauthorized person when the door is c osed.

Ity sometimes occurs that a robber forces the guardian oi ythe vault or safe into the same and confines him by closing the door and locking. the mechanism thereof. Sonie ci my improvements are designed to prevent theflocking of the door by the robber when he has confined the guardian in the vault. Taken' alone these elements of security might react to permit the robber to reopen the door and yassault or otherwise' dispose of the guardian oi" the vault and to prevent such occurrence other of ni improvements relate to means whereby t"`e occupant of the vault can so lock the door that the robber cannot reopen it. This arrangement tends to the security of the occupant of the vault and gives him courage and. opportunity to communicate with persons outside, such as police officers, as by telephone communication from the interior of the vault.

In the construction of the device as shown the numeral 1() designates the face plaie or body of a vault door of common and ordis nary construction, which plate is provided with hinge members 11, inner flanges 12, 13,r

locking bars 14 slidingly mounted in said flanges and extending transversely of the door in parallel spaced relation, a carrying bar 15 mounted on and connecting the locking bars 14 between' said flanges, other locking bars, supports therefor and bell cranks connected thereto, a lock case 16 and a (logging bar 17, all of which are common and well known and are here used conventionally to demonstrate the mounting and operations of my improved elements. A supporting bracket 18 is mounted in a horizontal position parallel with and spaced from the inner face of the door plate 10 and extends transversely of the carrying bar 15 between said carrying bar and the door plate; one end portion of said bracket abutting the inner face of the flange 13; the bracket being Secured by a cap screw 19 extending through a. hole formed therefor in the flange 13 and seated in and longitudr nally of the bracket. A locking block 20 is pivoted on the barrel of a shouldered screw 21 extending through said block and screwseated in and transversely of the bracket 18, the smaller end portion of the shouldered screw projecting slightly from that face of the bracket 18 adjacent to the door plate 10, The shouldered screw 21 is formed with a transverse'slot in each end thereof whereby a. screwdriver may be applied to remove the screw from the bracket. lllhen it is desirable, as hereinafter will appear, to remove the screw 21 from the exterior when the door is closedl a hole is drilled or burned in the plate 10 in registration with the smaller end portion of said screw and a screwdriver is introduced through said hole and employed to drive the screw out of its seat in adirection away from said door plate. One end portion of the locking block 2O is curved and relatively smooth and a hook 22 is located near the opposite end thereof and on the upper side margin of the block. A flange 23 is formed on the upper marginal portion of the locking block 20 and extends :across the plane of and above the bracket 18 and said flange is beveled at one end and is adapted to engage the upper margin of the bracket and limit oscillation of the Vblock in one direction, the flange itself being adapted to lie at times on the upper margin of the block and limit oscillation of the block relative to the bracket in one direction. The

opposite end face of the locking block 20 also is curved throughout the major portion of its length and is formed wil h ratchet teeth or serrations 24 extending transversely of said end face, a portion 25 of the end face remaining plane, A tubular handle 26 is fixed at one end to the bracket 18 and arched upwardly therefrom and across the flange 23` of the locking block, the o'iposite end portion of said handle being secured o one end of an end plate 27 which extends across and projects beyond the flush and otherwise free end of the block 18 and is secured thereto. The tubular handle 2G is formed with a slot 28 on its concaved side and an arm 29 on the adjacent end of the flange 28 extends through said slot and substantially across the bore of the handle. An expansive coil spring -30 is mounted loosely in the tubular handle 2G and impinges at one end on a closed end portion of said handle and at the otherend of a ball 81, which ball in turn contacts with one face of the arm 29. It is the function and tendency of the spring to hold the locking bar 2() in operative position with the flange 28 resting on the bracket 18 as shown by dotted lines in Figure 2 and other means about to be described are employed to hold said locking block in open position as shown by solid lines and suspended as to its locking functions against expansion of said spring. A recess 32 is formed in the bracket 18 and opens to the plane between the locking block and bracket and a recess 38 is formed in the locking block and is adapted to register with the first recess when the locking block is in operative position as shown by dotted lines in Figure 2. A hole 34; is formed in the locking block 2O and affords communication between the outer face of the locking block and the recess 33, which hole is of less diameterfthan the recess. An expansive coil spring 35 is mounted in the recess 82 and a tumbler 36 also is mounted in said recess and is adapted to compress said spring at times, being held by the spring in such position that it lies partlyin the recess 32 and partly in the recess 83 and serves as a dead-lock between the locking block 20 and bracket 18. The dead-lock can be suspended by beingv moved out of the recess 38 wholly into the recess 82 through manipulation (endwise pressure) of a key 37 placed through the hole 311. The functions of the dead-lock are suspended at times when the locking block is in inoperative position such as is shown by solid lines in Figure 2 and bccoine effective immediately and automatically when the locking block assumes the position shown by dotted lines in Figure 2.

A plate 38 is mounted across the inner face of the lock case 16 and is adapted to transmit any jar or impact applied to the lock case from the opposite side of the door plate l0.. An tingle her; `39,` is fixed. to the. inner fece of; the door' platell), below the lock cese 1.6 end. enothen angle bei' l0 iS` mounted atljustehly thereon and one erin extending'- zioi'oss the-Central'portioniof endl spaced` freni the p1ete38i The two, :ingle here 3.9, enelr 4.0- ere ediuetebly oonnectecl.l to componente for differences in thiokness of look.l enses. 16. enel,y suoh. adjnste ment is eti'eetedhy ineens of bolts 41 42. extending throughl slot 43. in` one arm of.l the har 40 and through llQleS- in one anni of the ber 39, the slot being of. materially greater length than the distance of separa.-

tion of the holte.. Contacting; feces of the adjacent arms of the boris end; 4.0 pref. erebly are senr-ated tolend Stability tothe e-tliusteble connection between them-y 'Ehe long arm of the bar 40 ie formed with anotoh 44: in its. extremity., which` notch lies, in e pleno perellel with. the plane ofA the plete 38, A trigger 4 5, su-hntilntielly` U. shaped; and with. one` erm, longery than. the other, is;` mounted loosely in and` extends. through the long'` arm` ofA the bei' 4.0.. The longV erm of. the-triggen 4.5, extends intoiend;`

wise contact with the controlporton, of thel plete 38Wh1e the short erm of. seid trigger. extendsneross the notch 44h A leef sprin 46 is mounted on the ber 40 and. overliesfan inipingee at one engl on the Qloed. end or portion of the trigger 4.5. An enehor 4.7,. preferably composed. of! two lengths of wire connected by e. fusible link 485 is.. fixed. et one end tothe iiange. 1.3.. at e point opposite the lock case. 1.6 and` seid.; anchor isettliched at itsether end.. to. the hook.. 22 onthc locle ing block. The anohon 4.7. iS of s ueh length, that` when. the lQQklIlg blQek. is in in opeijnf. tive position. the bigllt or'. the anchor. een4 be pleoed within thenotch 4.4. and be reteimd therein by the Short anni of the trigger 4o, in which position the anchor holdsithe. lock: ing bleek; in inoperetive poetioni against. enf pension of. the Spring 3.0.. The loeeten. of the looking. block 2.0/ when. in. inoperetiye position is such that the carrying hier 15 is:

permitted. e toll degree of movement to end fro het-.Ween Seid. hloclz. end' the edjeoent iienge 13.. However when the. floor is, closed. end the carrying her and' locking here are moved` to.. looking poSition. to. any extent up to the limit, of. the, 'range ot more nient ofthe carrying. hier that, wey, the leek.- ing block 2.0 when reljeoeecl fremd or hy the anchor 4.7. will' nuovei'nto engagement. with.. the cerrying hon (.enoept 'es hereinafter. noted) end' through the medium of" its. scrruted fece, contacting. with fSeial carrying her, prev-ent any opening or unloekng lnoven'ient until euch! time es. the.r locking block iS turned nnuiuelly into ite.

inoperative position: The epnli'eetioni. of. heat by a torch to suoli degree; as to hum. e hole through the door. plete; 1.0 into the leekeeeezor tocxnoee the` doggingiber would. rei-ee the tempera-ture. i ot the fusible link l 48 Snficientlyfto open it endi therehy'eever the enclimr.47y endperniit the euxiliety loeking Ineens (the locking block 20) to be thrownoase or to separate it rointhe cloory plate.

would react through. the plete 38 on the long erm of the trigger 4 5 to the end ofi moving .Seid trigger eeeinetthe preeeureof theleef riiig-Asuifioiently torelegise.- the bight of t e nohor from the trigger; which donea the lookingblock wouldfhemoved into operativeand looking p ositionloy` expansion. of. the spring, In the event that thecai-V rying bar isnt the innermost limit of movement,` when the looking. bleek 2,() moves. to operative looking Position, e Spe-ce existe betweenthe piene portionfQo of theetljeeent end. portionA of the looking: block end the eiecent eide margin ofi the ceiuyng. her aefrilluetretetl by dotted` lines. in` Figure 2, Seid', dotted. linesl Showing the carrying hor et. both limite of. movement illustrative ot this. condition When the. locking block et. temete-its.. operative position the deedloeh heooinee etfeetive es.. above noted,

A.. hole iS-fforlned. inthe lower projectingend: portion of. the plete 27. A: lever 4.9- plvotedf on e, screw, .50 seated. in. the lower margin of. the` block, 1.8 contiguous to the H enge 13.. endr .seid lever.l is. formed With e rightfangled flange 5l. et. one end,` which. flange isonned withy etransveree hole regie.- tering. with the hole-inthenlete 2.7.. A roek- Sheft'Z. ie extended through and journeled in the holes in the plete and flange 51,@ rightengled erm.-

ie formed. on one end of; seid. roek=sheft adjacent. to the flange 13. enden expensive coil. spring 54; einounted looSel onieeiol rochfsheft between Seid erin and )ie flange 51.-. oppcsiteendi portion oi the.- rock. she-.tt 52 is threaded endf en. adjusting ont o5.. is mounted. thereon' outside of. and. adapted. to. contact with the plete 27.. It isthe funetion of. the adjusting not to fix and determine the degree of separat-ion of; the erm. entl- ,flenge 5l under expansion of.' spring nel, to oompensete *for Slight venietiouc in the mounting of the hrecket due to.. different, thicknesses of flanges 13,. beoeuee in some nstenoee it ie neceeeeny to Shim the. bracket. relative to. the flange. to obtain` a, correct location therefor. The threaded end portion ot the rock-.Shaft is bent right angles substantially in the ethnie direction, es the ormyothereby tor-1 lng a, handle 5 6., by means of which the rook- Sheit. een be manipule-ted. The innen end portion the lever 49 is bent downwardly to form e handle or. lu. 5.7,` mele Shoulder 58 1e. formed. on one mer-gin ci. enit-l., lever r le! by means of a long tapering notch 59 formed therein. The rock-shaft 52 extends across the handle 57 between said handle and the door plate 10 and said handle is reduced in width relative to the body of the lever for such purpose.

In the practical use of the devices last above described, when the vault door is opened for any purpose the rock-shaft 52 is oscillated by turning the handle 56 `from a depending position into a horizontal position directed toward the door plate 10 and the friction created by the spring 54 will hold it in such position. This movement of the rock-shaft 52 turns the arm 53 into a position between the flange 13 and the adjacent margin of the carrying plate l5 where it will prevent movement of the carrying plate to the extreme of locking arrangement. Hence, when the door is closed by an unauthorized person such as a robber and the normal locking mechanism is shot toward locking position, it will be stopped short of the extreme of movement in that direction and in such position that the normal combination lock devices or tumblers cannot be operated to lock the el-ements so located. At this time an occupant of the vault would manually move the handle 57 in a direction away from the door plate 10, thus placing the shoulder 58 at the rear of the rear face of the carrying bar 15, thereby preventing the carrying bar being moved again to open or unlocking position. It is to be expected that the robber upon .discovering that he is unable to turn the combination and lock the door shut might attempt to reopen the door to make other disposition of the occupant of the vault .and it is to prevent this that the shoulder 58 is provided on the lever 49.

lhen the arm 53 is properly located to prevent the door being locked by the combination and the lever 49 has been manipulated to prevent the carrying bar being placed in open position, the occupant of the vault is in security and may await relief from the exterior with composure or turn to auxiliary means such as a telephone provided in 1the vault to give an alarm and summon ait.

In Figures 7 and 8 I have shown a modified form in which the lever 49 is omitted, together with its function. In lieu thereof a lug 49 is rigidly secured to the lower face of the block 18 by means of a screw 50', and is formed at one end with a downturned flange 51 which is apertured to provide a bearing for the rock shaft 52, against which flange t-he spring 54 has a bearing as before. The lug 49 is also formed with a marginal flange 49 which projects up past one edge of the block 18 to prevent turning of said lug.

I claim as my invention 1. Auxiliary means for locking a vault or safe door which door vis provided. with a carrying bar, comprising a bracket mounted on the door and extending across said bar, a locking block arranged on one side of and pivoted to said bracket in the plane of movement of said bar, yielding pressure devices carried by the bracket and adapted to move the locking block into contact with said bar, trigger released means adapted to hold said locking block at times out of contact with said bar, and a dead-lock carried by the bracket and adapted to engage and lock the block to the bracket attimes.

2. Auxiliary means for locking a vault or safe door, which door is provided with a carrying bar, comprising a bracket mounted on the door and extending across said bar. a locking block arranged on one side of and pivoted to said bracket in the plane of movement of said bar, the end face of the locking block adjacent to said bar being curved and serrated throughout the major portion of its curve, yielding pressure devices carried by the bracket and adapted to move the locking block into contact with said bar, trigger released means adapted to hold said locking block at times out of contact with said bar, and a dead-lock carried by the bracket and adapted to engage and lock the block to the bracket at times.

3. Auxiliary means for locking a vault or safe door, which door is provided with a carrying bar, comprising a bracket mounted on the door and extending across said bar, a locking block arranged on one side of and pivoted to said bracket in the plane of movement of said bar, yielding pressure devices carried by thebracket and adapted to move the locking block into contact with said bar, trigger released means adapted to hold said locking block at times out of contact with said bar, the end portion of the locking block farthest from the bar being curved and adapted to be engaged by said trigger released means, and a dead-lock carried by the bracket and adapted to engage and lock the lock to the bracket at times.

4. The combination with a vault door having a lock case, locking bars, a carrying bar and a clogging bar, of an auxiliary locking device carried by said door and adapted to engage at times with said carrying bar, an adjustable angle bracketmounted on said door and extending over said lock case and formed with a notch in its extremity, a trigger mounted in and extending through the notched end portion of said bracket, one arm of said trigger' extending into proximity with the lock case, and a flexible anchor attached at one end to the locking device and at the other end to said door, the bight of said anchor extending at times through the notch in said bracket and engaged by said trigger.

5. TheA combination with a vault door having a lock case, locking bars, a carrying bar and a dogging bar, of an auxiliary locking device carried by said door and adapted to engage at times with said carrying bar, an adjustable angle bracket mounted .on said door and extending over said lock case and formed witha notch in its extremity, a plate interposed between the notched end portion of said bracket and the lock case, a trigger mounted in and extending through the notched end portion of said bracket, one arm of said trigger extending in-to proximity with said plate, and a flexible anchor attached at one end to the locking -device and at the other .end to said door, the bight of said anchor extending at times through the notch in said bracket and engaged by said trigger.

6. The combination with a vault door having a carrying bar, of a bracket mounted on said door and extending across said carrying bar, auxiliary locking means carried by said bracket and adapted to engage said bar at times, and means carried by said bracket adapted for manual adjustment into a position to limit movement of the carrying bar toward locking position at times.

7. The combination with a vault door having a fiange and bolt work movable in a plane transversely thereof, of a supporting bracket mounted on said flange and extending across said bolt work, means mounted for oscillation on a horizontal axis and adapted to be moved manually to a position between said fiange and bolt work whereby the movement of the bolt work relative to said flange and toward locking position is limited.

8. The combination with a vault door hava flange and bolt work movablein a plane transversely thereof, of a supporting bracket mounted on said fiange and extending across said bolt work, means mounted for oscillation on a vertical axis and adapted to be moved manually to a position whereby it may be engaged by a portion of the bolt work and limit the movement of the same toward locking position.

9. The combination with a vault door having a flange and bolt work movable in a plane transversely thereof', of a supporting bracket mounted on said flange and extending across said bolt work, means mounted for oscillation on a vertical axis and adapted to be moved manually to a position whereby it may be engaged by a portion of the bolt work and limit the movement of the same in one direction, and means mounted for oscillation on a horizontal axis and adapted to be moved manually to a position between said flange and bolt work whereby the movement of the bolt work relative to said flange in one direction is limited.

l0. In a device of the class described, a bracket formed with a recess, a locking block arranged on one side of and pivoted to said bracket, said locking block being formed with a recess adapted to register 4with the first recess at times, a spring-backed deadlock mounted in the first recess and adapted to enter Athe second recess at times, said bracket being formed with a keyhole communicating from its exposed side to the lat- -ter recess and adapted to receive a key Awhereby fthe dead-lock may be yoperated to release from the locking block.

11. In a device of the class described, a bracket, a locking block arranged on one side of and pivoted to said bracket, said flocking block being formed with a flange on its upper margin extending across said bracket, an `arm extending from said fiange, yielding pressure devices acting .on said arm in one direction, and means attached to said block for holding the saine against said pressure.

l2. In a device of' the class described, a bracket, a locking block arranged on one side of and pivoted to said bracket, said locking block being formed with a flange on its upper margin. extending across said bracket, a hook on said flange, and an anchor attached to said hook and adapted to hold said block against said pressure at times.

13. In a device of the class described, a bracket, a locking block arranged on one side of' and pivoted to said bracket, said locking block being formed with a flange on its upper' margin extending across said bracket, one end portion of said flange being beveled and adapted to contact with said bracket and limit movement of the block in one direction, an arm extending from said fiange, yielding pressure devices acting on y said arm 1n one direction, and means attached to said block for holding the same against said pressure.

14:. In a device of the class described, a bracket, a. plate extending across and secured at one end to said bracket and projecting therefrom at both ends, a tubular handle carried by said bracket and plate, an expansive coil spring in said handle, a locking block arranged at one side of and pivoted to said bracket and formed with a flange extending over said bracket, an arm on said flange extending within and adapted for travel longitudinally of said tubular handle, said arm being engaged by said spring, and a hook on said flange adapted to be engaged by an anchor.

l5. In a device of the class described, a bracket, a rock-shaft mounted on said bracket and formed with an arm at one end, a spring interposed between said arm and its bearing, and a handle formed on the opposite end of said rock-shaft.

16. In a deviceof the class described, a bracket, a rock-shaft mounted on said bracket and formed with an arm at one end, a spring interposed between said arm and Cil its bearing, an adjusting nut inounted 0n said rock-shaft, and a handle torined on the opposite end of said rock-shaft.

17. In a device ot the class described, a bracket, a lever iulcrnined On said bracketand formed with an apertured ear at one end, a plate mounted on said bracket and 'formed with an apertured end portion registerinlgl with said ear, a rock-shaft journaled in the apertures of the ear and end portion, said rock-shaft being formed with an arm at one end, an expansive coil s iring interposed between said arn'i and the ear, an adjusting nnt inonnted on the opposite end ot said rock-shaift and adapted to engage said apertnred endfportion ot' the plate, and a handle formed on said rock-shaft adjacent said adjusting nut.

18. 1n a device of thc class described, a bracket having a notch in one end, a yokeshaped trigger traversing said notched end, one erin ot the trigger extending across said notch and spaced trono the bottom thereot.

1f). In a device ot the class' described, a bracket having a notch in one end, a yokef shaped trigger traversing said notched end, one arm of the trigeer extending across said notch and spaced 'r'roin the hottoin thereof`r and a lea-t spring mounted on said bracket and engaging the closed end portion o the yoke-shaped trigger.

Signed at 'Fort Dodge, in the county ot Vebstcr and State ot Iowa, this 30th day ot June, 1923.

FRANK 0. PETERSON. 

